Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors in Yonglong, China, as it plays a vital role in protecting skin health and preventing sunburn. With a Cfa climate that typically features warm summers and moderate sun exposure, knowing the UV levels can help you take the necessary precautions when outdoors. During peak hours, the UV Index can reach alarming highs—peaking at 13 between noon and 1 PM. By staying informed about these levels, you can enjoy the beautiful sun while safeguarding your skin from harmful effects.
As the sun climbs higher, the UV Index reaches its peak intensity around 12:00 PM, soaring to a striking 13—a clear signal for outdoor enthusiasts to take precautions. The morning hours start gently, with a low of 1 at 07:00 AM, gradually escalating to 6 by 09:00 AM and hitting 9 at 10:00 AM. By 11:00 AM, the sun begins to assert itself with a 12. However, as the afternoon progresses, the UV intensity starts to wane, dropping to 10 at 2:00 PM, and tapering off to a mere 2 by 5:00 PM. As daylight diminishes, the UV Index dwindles to 0 by 7:00 PM, inviting a much-needed respite from the sun’s relentless rays. Always be vigilant and protect your skin during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV exposure levels significantly fluctuate, with high-risk months primarily occurring from February to September. The UV Index peaks during May to August, showcasing extreme levels at 13, where the burn time is a mere 10 minutes. March and April also exhibit extreme levels (11), emphasizing the importance of sun protection during these months. As temperatures rise, it’s crucial for visitors and residents alike to take necessary precautions such as wearing sunscreen, protective clothing, and seeking shade during peak hours. As the year progresses, the UV Index decreases, reaching very high levels in October and November. Notably, the burn times extend to 15 minutes in these months, but caution should still be exercised. In January and December, while the risk is lower, with the UV Index at 7 and 6 respectively, maintaining protective measures remains advisable.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Beijing UVI | 2 | 3 | 5 | 8 | 9 | 9 | 10 | 9 | 7 | 6 | 4 | 2 |
| Chengdu UVI | 5 | 6 | 8 | 10 | 12 | 11 | 11 | 10 | 11 | 8 | 6 | 4 |
| Shanghai UVI | 5 | 6 | 8 | 10 | 10 | 11 | 12 | 11 | 11 | 8 | 6 | 4 |
| Yonglong | 7 | 9 | 11 | 11 | 13 | 13 | 13 | 13 | 11 | 10 | 8 | 6 |
| Guangzhou UVI | 7 | 9 | 11 | 12 | 13 | 13 | 13 | 12 | 11 | 10 | 9 | 7 |
| Shenzhen UVI | 7 | 10 | 12 | 12 | 14 | 13 | 13 | 13 | 12 | 11 | 9 | 7 |